{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-3AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-3AH00","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-3AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, 3RT1025-3AH00, size S0, 3-pole NO, 10 kW at 500 V, 11 kW at 690 V, screw-type terminals, IP20 front, 45 mm width.","salesMarkdown":"Rated for 10 kW at 500 V and 11 kW at 690 V, this contactor handles a 3-phase motor up to that power range. The 90 mm depth means you need at least that much clearance behind the panel door for the arc chamber and terminals. Main circuit terminals are screw-type, accepting solid conductors from 0.25 to 2.5 mm² (two per clamp) and stranded up to 2x 6 mm² or a single 10 mm². AWG equivalents run from 2x 16-12 down to 1x 8. That's enough for the motor leads this contactor is sized for. ## Protection and coordination For Type 1 coordination (contactor may need replacement after a fault), the fuse can be 63 A. This lets a panel builder choose between protecting the contactor or protecting the circuit with a larger fuse. The contactor is rated for operation up to 2,000 m altitude without derating. Above that, expect reduced dielectric strength and cooling air density.","metaTitle":"Siemens SIRIUS 3RT1025-3AH00 Power Contactor, S0, 10 kW at 5","metaDescription":"Siemens SIRIUS 3RT1025-3AH00 power contactor, size S0, 3-pole NO, 10 kW at 500 V, 11 kW at 690 V, screw terminals, IP20 front, current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"90 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"85 mm","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 Hz","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Size of contactor":"S0","Product brand name":"SIRIUS","Degree of pollution":"3","Product designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"48 V","at 500 V rated value":"10 kW","at 690 V rated value":"11 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"7.5 kW","at AC-4 at 400 V rated value":"15.5 A","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"40 A","Apparent holding power of magnet coil at AC":"7.8 V·A","Apparent pick-up power of magnet coil at AC":"61 V·A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.82","Inductive power factor with the holding power of the coil":"0.24","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=377823&mlfb=3RT1025-3AH00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3AH00/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3RT1025-3AH00?","answer":"It's a size S0 3-pole NO contactor rated for 10 kW at 500 V and 11 kW at 690 V motor loads. In AC-4 duty at 400 V it handles 15.5 A. The coil operates at 48 V 50 Hz with a pick-up range of 0.8 to 1.1 x rated voltage."},{"question":"Will the 3RT1025-3AH00 fit a panel designed for the 3RT1017-1AP01?","answer":"Both are S0 frame contactors with the same 45 mm width, so they share the same DIN-rail footprint and panel cutout. The main difference is the coil voltage — the 3RT1025-3AH00 uses 48 V 50 Hz, while the 3RT1017-1AP01 uses a different coil. Wiring the coil supply correctly is the only fit concern."},{"question":"What compliance documentation is available for the 3RT1025-3AH00?","answer":"As a Siemens SIRIUS catalog item, it carries CE marking and is designed to relevant IEC/EN standards including EN 60947-4-1 for contactors. RoHS and REACH declarations are standard from the manufacturer. Specific UL/CSA listings should be confirmed against the exact variant marking on the nameplate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-3AH00","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RT1025-3AH00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}